Hi,
Very quiet night on the List. Speaking of quiet nights...
There a Japanese artist, Kagaya, who is a frequent painter of what
can only be called skyscapes, a rather unusual category of art. I
call them skyscapes, as opposed to astronomical space art (although he
does that too),
Rumuruti's are expected to be weakly magnetic/possibly magnetized.
Pyrrhotite is usually weakly magnetic, and 5% is going to be really weakly
magnetic
though I expect it will now deflect a compass needle...but if you look at the
composition of Rumuruti's you can learn a lot.
Oh no Tom
Hello All,
R-chondrites contain a very small amount of metal and/or magnetism.
Although a very slight pull is detectable with the very strongest
rare-earth magnet, most will not give any pull at all. However, Rob
(Wesel) was correct in saying that NWA 801 is [very] highly magnetic.
This is
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItemitem=6535594528
Take a look at this piece! Check out the armored chondrule on the left, isn't
that incredible! Looks like it was just dipped in molten iron.
Mike Farmer
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Meteorite-list mailing list
Hi Tom,
at David Weir's page it says about Rs:
The group is highly oxidized, olivine-rich and metal-poor.
and
..and essentially no FeNi-metal as compared to all other chondrite groups.
Thus no maths or special knowledge necessary.
Praise the Weir!
Martin
- Original Message -
From: Tom
Dear List Members,
Michel Franco and I are proud to announce that the Second Intergalactic
Meteoritical Mont-Blanc Meeting took place on May 9-10, 2005 at the Highly
Secret Cailou Noir Laboratory...
Should any of you be interested in the report about this meeting, you can
have a look at the web
Beautiful!
- Original Message -
From: Sterling K. Webb [EMAIL PROTECTED]
To: Meteorite List meteorite-list@meteoritecentral.com
Sent: Tuesday, May 31, 2005 2:04 AM
Subject: [meteorite-list] OT: SKYSCAPES, OR SKY ART
Hi,
Very quiet night on the List. Speaking of quiet nights...
Hi Tom and List,
Here is an excerpt from the good old RFS:
NORTON O.R. (1998) Rocks From Space, pp. 190-191:
and iron-nickel metal is nearly absent. Most of the metal is in the sulfides
pyrrhotite (FeS) and pentlandite [(Fe,Ni9)S8] or combined with olivine. The
pyrrhotite is magnetic, giving
Monthly Favourite for June is up.
http://www.meteorites.com.au/favourite.html
Cheers,
Jeff Kuyken
I.M.C.A. #3085
www.meteorites.com.au
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Meteorite-list@meteoritecentral.com
http://www.thespacereview.com/article/384/1
Sounding an alarm, cautiously
by Jeff Foust
The Space Review
May 31, 2005
The cosmos, it seems, can have a bad sense of timing. While many people
spent the final days before Christmas 2004 preparing for the holiday,
the small group of astronomers
http://marsrovers.jpl.nasa.gov/mission/status.html
SPIRIT UPDATE: Spirit is Power Positive - sols 490-498, May 27, 2005
Spirit is healthy and power positive. Spirit is doing some remarkable
science at Larry's Outcrop, moving along the edge of this spot that
looks stereotypically Mars-like. As
Hello List, this has been very educational and I would like to thank
everyone! So, most R's have enough metal to be attracted to a powerful
enough magnet, while a couple have quite a bit of iron, my question has been
answered
If I had a big enough collection, I would not have to ask the list
I have just tested Saturday in a mineral show some
fragments of R chondrite, the magnet is not attract,
and I have a strong magnet.
Matteo
--- Tom Knudson [EMAIL PROTECTED] ha
scritto:
Hello List, this has been very educational and I
would like to thank
everyone! So, most R's have enough
Dear List,
Here is a link to check out some really nice bargain priced meteorites.
Don't forget to check out the very cool Sikhote Alin oriented heart and
other treasure. Most are still way below acquisition costs at just 99
cents:
http://search.ebay.com/_W0QQsassZraremeteorites
Thank you for
i have a very nice 29g slice of this unshocked chondrite w/ crust on ebay. if the slice does not sell , will get out pliers and start breaking off micros/ macros to order for $4/g (enough request for those, and it comes off ebay). have a look:
Tom concluded:
So, most R's have enough metal to be
attracted to a powerful enough magnet
Careful, please. I'd like to add the little word just,
leave out the word most and replace it by some:
Some R's have j u s t enough metal to be
attracted to a powerful enough magnet ...
This sounds
extensive aqueous alteration on the R parent body
Water in space? That sounds like a whole new subject! : )
Thanks, Tom
peregrineflier
- Original Message -
From: [EMAIL PROTECTED]
To: Meteorite-list@meteoritecentral.com
Sent: Tuesday, May 31, 2005 11:48 AM
Subject: [meteorite-list] R
Bernd, as you rectify Tom's synthesis of everything thus far, to *Some*
R-chondrites have *j u s t* enough metal to be attracted to a strong enough
magnet - that's not what you meant to say, I cannot help believing. I had
posted (and you also later cited) the literature the paper
Bernd wrote:
extensive aqueous alteration on the R parent body
Tom responded:
Water in space? That sounds like a whole new subject! : )
Hello Tom, Doug, and List,
NORTON O.R. (1998) RFS II, p. 193):
CI carbonaceous chondrites ... contain the highest percentage of water
- 20 percent - of
Hola, Bernd, Tom, List, PS, I would like to add to this, that the reason the
pyrrhotite mineral is magnetic is due precisely to excess of Sulfur
(non-stoichiometric pyrrhotite). Like troilite, pyrrhotite loses its
magnetism as it
becomes saturated with iron (i.e. the net formula). The
Okay, there is water in space.
CI carbonaceous chondrites ... contain the highest percentage of water
- 20 percent - of any carbonaceous meteorite. When heated in a closed
container, the water is easily driven off and condenses on the side of
the enclosing vessel.
Next logical question, how could
It depends on what form the water is in. In the case of meteorites, surely
it is in various hydrates. It is far easier to dry out a meteorite in the
vacuum of space than it is on the Earth, wouldn't you agree? So if the
bonding of water in the hydrates is strong enough to prevent the former,
Tom inquired:
It sure makes me wonder how they could keep space water
in them if they were not picked up immediately after the fall?
Because they do not contain *l i q u i d* water. The water found
in carbonaceous chondrites and Martian meteorites can only be
extracted by heating the
There are only two meteorites known to contain liquid water:
- Monahans
- Zag
What about the Hupe's NWA969 LL7 Meteorite Containing Bottled Water?
Thanks, Tom
peregrineflier
- Original Message -
From: [EMAIL PROTECTED]
To: Meteorite-list@meteoritecentral.com
Sent: Tuesday, May 31,
Chris P. wrote:
It depends on what form the water is in. In the case of
meteorites, surely it is in various hydrates. It is far
easier to dry out a meteorite in the vacuum of space
than it is on the Earth, wouldn't you agree?
Hola Chris, List,
For unbound water: Not sure on that one
Exactly! Consider the case of copper carbonate. In its hydrated form, it
is a pretty blue crystal; we used to use it in our swimming hole in low
amounts to kill off algae and weeds. In its anhydrous form, it's a greenish
powder. Don't eat either one; bad. I'm not akamai enough to guess
MEDIA RELATIONS OFFICE
JET PROPULSION LABORATORY
CALIFORNIA INSTITUTE OF TECHNOLOGY
NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
PASADENA, CALIF. 91109 TELEPHONE (818) 354-5011
http://www.jpl.nasa.gov
Carolina Martinez (818) 354-9382
Jet Propulsion Laboratory, Pasadena, Calif.
News Release:
Hello Anne and list, you will all be happy to hear I received my very own
copy of Meteorites A to Z, thanks to Anne Black It should answer a lot
of questions I may of had to ask the list. : )It looks like it is going
to be one handy resource, every one should have one!
Thanks, Tom
Hi list.I have a 70 gram slice of LAMONT mesosiderite for trade.I am
looking for either a piece of NWA 1879 or 1878 or NWA 1882
mesosiderite.And no this has nothing to do with sales,campos
sales,givaways or anything else.JUST A TRADE OFFER.Email off list if
interested.I have a picture of it.It
In a message dated 5/31/2005 5:07:29 P.M. Mountain Standard Time,
[EMAIL PROTECTED] writes:
Hello Anne and list, you will all be happy to hear I received my very own
copy of Meteorites A to Z, thanks to Anne Black It should answer a lot
of questions I may of had to ask the list. : )
Good Evening List;
In response to the recent posts regarding sale advertisements (ADs) on
the List, I'm inviting anyone with a strong opinion (for or against)
to email me *OFF list* with your thoughts and reasoning.
I'll take a more strict approach towards ADs if I get a large number
(majority)
Hi Tom and Anne,
Nice book. Anne, kind of you to send
Tom a copy.
-Walter
-
- Original Message -
From: Tom Knudson [EMAIL PROTECTED]
To: met list meteorite-list@meteoritecentral.com
Sent: Tuesday, May 31, 2005 7:07 PM
Subject:
Hello Everyone,
Ok, if you are not interesed in this, you are not interested
in meteorites!
Just got this emailed to me from the University of
Hawaii. This is an interesting article which discusses
the presence of chondrules inside CAIs.
http://www.psrd.hawaii.edu/May05/chondrulesCAIs.html
Dear Tom;
Did you get any one to sign it for you?
Best,
Dave F.
Tom Knudson wrote:
Hello Anne and list, you will all be happy to hear I received my very own
copy of Meteorites A to Z, thanks to Anne Black It should answer a lot
of questions I may of had to ask the list. : )It looks
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